baber/WOPTO huggingface dataset:
Patent GB-2250892-A (GB)
Title: A method of operating a radio communications system
Inventor: OWEN FRANK CHARLES GWYN
IPC: H04M1/72511
Filed: 1990-12-14
Abstract: A communications system, such as DECT, comprises a plurality of geographically separate primary (or fixed) stations (PS) and a plurality of secondary (or portable) stations (SS) which are able to roam relative to the primary stations. Communication between the primary and secondary stations is by way of any one of a plurality of TDD radio channels. A primary station when idle transmits an idle beacon signal onto which an idle primary station can lock by scanning the radio channels. However a secondary station which has roamed out of coverage range of the primary stations can save battery power by progressively increasing to a maximum time value the time interval between successive scans. <IMAGE>
Patent GB-2239896-A (GB)
Title: Window or door actuator
Inventor: HARVEY PHILIP DAVID
IPC: E05F15/20
Filed: 1991-01-11
Abstract: An actuator for opening and/or closing a window 40 or door comprises signal sensing means, a motor controller, a motor 12 and a linkage 46, 48 between the motor and the window or door, whereby a signal such as an infra red signal is used to actuate the motor controller and hence the motor. <IMAGE>
Patent GB-2252844-A (GB)
Title: Pneumatic circuit track board
Inventor: BRADFORD RICHARD WILLIAM STUTL
IPC: G03F7/00
Filed: 1991-02-14
Abstract: A pneumatic circuit track board is formed by overlaying an image of the required track pattern on a plate coated with a UV or radiation sensitive photoresist, exposing the plate to UV or other radiation to harden the parts of the plate other than the tracks; washing out the tracks with warm water; and exposing the plate again to radiation to harden its surfaces. Thus a board can be produced cheaply and reliably without the need for an N.C milling machine. <IMAGE>
Patent GB-2243711-A (GB)
Title: Flexible disk device
Inventor: KAWADA JUNJI
IPC: G11B5/55
Filed: 1991-04-12
Abstract: A head carriage for a flexible disk apparatus comprises read/write head 5 at the tip end thereof and a coil bobbin 25 disposed at the other end thereof to support a voice coil 24 which interacts with a magnetic core structure to drive the carriage. The may be two coils operating with respective E-shaped core structures. <IMAGE>
Patent GB-2246607-A (GB)
Title: Electromagnetically actuated spring clutch
Inventor: SPECHKO JOHN A
IPC: F16D65/18
Filed: 1991-07-29
Abstract: Magnetic flux produced by an electrically energized coil (21) threads radially between a housing (22) and a flange (26) on a rotatable shaft (12), threads axially between the flange (26) and a control collar (16) for the clutch, threads radially between the control collar (16) and an input hub (13) via a helical spring (15) contracted around the hub (13), and threads axially between a flange (11) on the hub (13) and the housing (22) to complete the flux circuit. Flux cutting axially between the flange (26) on the shaft (12) and the control collar (16) causes the control collar (16) to shift axially into engagement with the flange (26) so as to effect turning of the collar (16) relative to the input hub (13) and contraction of the spring around an output hub (14). Members (12) and (14) are formed of non-ferromagnetic material and the members (11), (13), (15), (16), (22) and (26) are formed of ferromagnetic material.   <IMAGE>
Patent GB-2259181-A (GB)
Title: Magnetron
Inventor: LEWIS PETER FREDERICK
IPC: H01J23/54
Filed: 1991-11-11
Abstract: A magnetron has a vacuum envelope comprising an anode having a plurality of internal resonant cavities and a cathode located within the anode. In Fig. 3 the anode block 1 is located within a magnetic field in between a pair of pole pieces 45, 46 which are each attached to opposing walls of a metal housing 40 which functions both as a yoke for the pole pieces and a Faraday cage to prevent the emission of unwanted electromagnetic radiation from the magnetron. In Fig. 2 the magnetron has an elongate cathode 8 which is supported at each end by an elongate conducting pin 9 which serves for supplying electrical current to the cathode, and a choke or shielding arrangement 15 surrounds each pin 9 for preventing the emission of electromagnetic radiation. The shielding 15 is formed by two similarly dimensioned, coaxially spaced tubes 16, 17 each of length 1/4 of the output wavelength of the magnetron and connected respectively to the anode and the cathode, and a larger diameter third tube 20, preferably of the same length as tubes 16, 17, surrounds the axial separation 18 of the tubes 16, 17. A method of attaching the conducting pin 9 to the cathode 8 is also disclosed in which pin 9 is inserted in a first hole 11a in cathode end cap 11 and a welding, brazing or like tool is inserted in a second hole 14 which connects with the first hole 11a to effect the join between the pin 9 and end cap 11. <IMAGE>
Patent GB-2262170-A (GB)
Title: Internal card type uninterruptible power system
Inventor: YANG HWA
IPC: G06F1/30
Filed: 1991-12-05
Abstract: An internal card type uninterruptible power system 7 is to be used in combination with a computer 2 that is normally operated by line power. The system 7 includes a battery pack 9 which is charged when the line power is available and which is actuated to supply power to the computer 2 when the line power is cut off. The computer 2 is set to the real memory mode if it was operating in the virtual memory mode before the line power was cut off, and is then controlled so as to store system variables and memory data in a magnetic disk. The battery pack 9 is deactivated after storage of system variables and data has been completed. When the line power is restored, the computer 2 is controlled so as to retrieve the system variables and data from the magnetic disk and thereby restore the computer 2 to the previous operating state. <IMAGE>
Patent GB-2251628-A (GB)
Title: Heat exchangers and alloys for use in their manufacture
Inventor: WALTER PETER FRANK
IPC: B23K35/30
Filed: 1992-01-07
Abstract: An alloy has the following composition in weight percentages: Chromium 20 to 33, Silicon 2 to 6, Boron 2 to 6, Iron 0 to 20, Carbon 0 to 1.5, Tungsten 0 to 5, with Nickel making up the balance to 100. Such an alloy is used to braze together the metal parts of a heat exchanger, e.g. one of a type suitable for a community heating scheme, or of other extended area devices, such as fluid heaters and catalyst carriers.
Patent GB-2251187-A (GB)
Title: Pharmaceutical product for the treatment of sepsis
Inventor: BOWMER MARK WILLIAM
IPC: A61P31/04
Filed: 1992-02-07
Abstract: An antibody to tumour necrosis factor- alpha  (anti-TNF) and an antibody to bacterial lipopolysaccharide (anti-LPS) used together in a neutropenic rat model of sepsis are shown to enhance survival of the rats relative to either antibody used alone. Pharmaceutical products including each of the components are therefore of utility in therapy of sepsis. The anti-LPS antibody included may be specific for the O-specific chain of a particular bacterial lipopolysaccharide (serotype specific antibody) but preferably recognises the core glycolipid of lipopolysaccharide.
Patent GB-2264937-A (GB)
Title: Recovering nickel and magnesium from ores
Inventor: AGUDELO MARIA MAGDALENA RAMIRE
IPC: C22B3/06
Filed: 1992-03-07
Abstract: Nickel and magnesium are recovered from naturally occuring materials by extracting them in the presence of a spent sulfur-containing iron-based hydroconversion catalyst, under oxidative conditions. The naturally occuring material containing at least 0.1% by wt of each of Mg and Ni is admixed with a spent iron based catalyst having a sulphur content of at least 10 wt% in a ratio of 1:8 to 2:1, the mixture formed into a suspension with water of pH </=4, the suspension subjected to elevated temperature and pressure and an oxidant (eg O2 and/or air) injected into the suspension whereby Nc and Mg are extracted. <IMAGE>
Patent GB-2255867-A (GB)
Title: A carrier recovery method and apparatus having an adjustable response time determined by carrier signal parameters
Inventor: CAHILL STEPHEN V
IPC: H04B1/10
Filed: 1992-05-28
Abstract: A communications receiver (103) comprising a carrier recovery apparatus having an adjustable response time loop filter (123) responsive to carrier signal parameters determined by a signal processor (141) is disclosed. Signal reception under fading conditions is improved by detecting the received signal parameters in an energy level determinator (207). a rate of change of energy level determinator (209) and a look-up table value (221) corresponding to a position of TDMA time clock (219). <IMAGE>
Patent GB-2269523-A (GB)
Title: Treating Hides
Inventor: RONAN THOMAS
IPC: C14C1/02
Filed: 1992-08-14
Abstract: Salt used in treating hides is removed by tipping the hides over a grille 20 with the flesh side lowermost. Recovered salt is collected in a pit 21 and delivered by a first screw conveyor 23 to an outlet 24 and by a second screw conveyor 25 to a hopper 27. To remove flesh from the hides the hides are passed between pairs of nip rollers which alternately deflesh a flesh side and clean a hair side of the hide. Removed flesh is delivered down an inclined plate to a trough from which it is delivered into a collecting hopper by pusher arms which are pivotally mounted to allow the arms to travel back freely through the trough. <IMAGE>
Patent GB-2260284-A (GB)
Title: A mould for casting components
Inventor: ROSE PETER EDWARD
IPC: B22C9/08
Filed: 1992-08-17
Abstract: A ceramic shell mould 70 for casting a single crystal turbine blade comprises a plurality of portions, 72, each of which has a blade-defining chamber 74, a plurality of selector portions 76, a plurality of starter portions 80 and a runner arrangement 84. The runner arrangement comprises a first subsection 86 which has a central axis 87 arranged parallel to, and spaced from, the central axes 73 of the portions 72 and a plurality of second subsections 90 which interconnect the first subsection 86 with the article portions 72 and which are arranged to make an acute angle with the first runner subsection 86 and with the respective axes 73 so that the second subsections may bend to allow relative movement between the first runner subsection and starter portions 80 to prevent the cast turbine blades falling off the mould. The second subsections (90) also have a small cross-sectional area to increase the amount of bending possible. Ceramic filters 94 are provided at the junction of the runner subsections 86 and 90. The second runner subsections may be curved (Fig. 3), the selector portions 78 omitted (Fig. 6), and there may be two sets of blade chambers arranged at different radical spacing from the runner first subsection and connected thereto at axially spaced levels (Figs. 8 and 9). <IMAGE>
Patent GB-2259178-A (GB)
Title: Magnetic record reproducing apparatus
Inventor: LEE MIN-SU
IPC: G11B15/61
Filed: 1992-08-28
Abstract: A magnetic record recording apparatus (VTR, Camcorder, DAT and the like) which can record and reproduce signals on a magnetic tape, is provided with magnetic head drums (20, 30) having mutually opposing set up angles and rotating directions, with one head drum (20) for recording or reproducing signals on domain (4a) of a tape when the tape is played in a first direction (A) and with the other head drum (30) for recording signals or reproducing the recorded signals on a lower domain (4b) of the tape when the tape is played in an opposite direction (B). The apparatus can thus record or reproduce in both directions, eliminating the drawback of rewinding and doubling the usage time of the tape. <IMAGE>
Patent GB-2272974-A (GB)
Title: Inertial guidance system
Inventor: WATSON NORMAN FREDERICK
IPC: G01C21/16
Filed: 1992-11-27
Abstract: An inertial guidance system for a strapdown aircraft navigation system has three accelerometers (AX, AY, AZ) for measuring acceleration in three mutually perpendicular axes (X, Y, Z). One accelerometer (AZ) is placed on the datum point of the unit; the other two accelerometers (AX, AY) are arranged to have their centres of percussion co-planar with the first accelerometer thereby to reduce the complexity of calculations required to effect error compensation due to lever arm effects. The displacements of the second and third accelerometers (AX, AY) from the first accelerometer are preferably arranged to be substantially equal and are along the X and Y axes respectively, thereby further simplifying error compensation. <IMAGE>
Patent GB-2261876-A (GB)
Title: Compositions for phenol-aldehyde foams based on chlorofluorohydrocarbons
Inventor: PINOCHE JEAN-MARIE
IPC: C08J9/14
Filed: 1992-11-27
Abstract: A composition capable of being converted into a foam, comprising a mixture based on a phenol-aldehyde resin, an acid catalyst, dichlorofluoroethane and a surfactant, is characterised in that it essentially consists, per 100 parts by weight of phenol-aldehyde resin, of:       - not more than 14 parts by weight of dichlorofluoroethane,   - not more than 14 parts by weight of organic acid catalyst, and   - not more than 4 parts by weight of surfactant.   The dichlorofluoroethane is an environmentally-acceptable blowing agent.
Patent GB-925463-A (GB)
IPC: D04B9/38
Abstract: 925,463. Knitting. M. NEBEL. April 16, 1959 [April 16, 1958], No. 48586/62. Divided out of 925,462. Class 74 (2). The Specification relates to the production of the fabric and, inter alia, to the machine disclosed in Specification 925,462. It is stated, however, that both courses a and b may be formed on the same loop-sinking level P<SP>a</SP> behind the hooks of sinkers shown in Figs. 10 and 10a and that the difference between the thread lengths of the courses so formed may be increased by appropriate control of sinker movements. The edge P<SP>c</SP> may assist the casting off action by acting on the last formed course. The sinker hooks may be withdrawn from the needle circle at both feeds and thrust in again under the yarn earlier and finally further than usual. Fig. 12 (Section I) shows the sinkers as having been withdrawn and re-inserted so that their throats P<SP>k</SP> act on the sinker loops of the previous course b; and Section II shows the throats acting on the previous course a. Claim is made to a method (and to a machine) for the production of run-proof fabric in a circular knitting-machine for stockings having one set of needles and sinkers and having at least two knitting (feeder) systems which respectively form courses of different thread length, wherein during one revolution of the cylinder predetermined needles at one knitting system form stitches and the intermediate needles take up thread but do not knit in making one course, and at another feeder system during that revolution all needles follow a common path and form another course with a full complement of stitches initially of substantially the same size, the said courses being formed of a thread length longer in one course than in the other and the thread portions which have been taken up but not knitted in the said one course being combined with stitches of the said other course whereby predetermined stitches in the shorter thread-length course have thread so robbed therefrom as to form small locking stitches in the fabric and after every two such courses there is an interchange of the needle motions so that the differentlyformed stitches appear in each stitch wale.
Patent GB-2268568-A (GB)
Title: Piston assembly having a wrist pin bolted therein
Inventor: BERLINGER WILLIBALD GUSTAV
IPC: F16J1/18
Filed: 1993-04-30
Abstract: The design and construction of past piston assemblies having a wrist pin bolted to a connecting rod have excessive weight and structural components, and requires more complex machining techniques and tooling. The present invention overcomes these problems by providing a piston assembly (30) with a wrist pin (36) attached to a piston member (32). Thus, the length of the leg members (80) are short and do not require a portion surrounding the wrist pin (36). The results being reduced piston member (32) and piston assembly (30) weight and lower inertia, a simplified forging or casting process, a more easily machinable cavity (86) within the piston member (32) and a higher quality piston assembly (30). <IMAGE>
Patent GB-2281161-A (GB)
Title: Optical data communications networks
Inventor: CAHILL NEIL
IPC: H04B10/524
Filed: 1993-08-04
Abstract: A TPON (telecommunications over passive optical networks) or other network has a common optical receiver 11 and a plurality of optical transmitters 12 connected to receiver 11 by way of a passive optical network 4 consisting of optical splitters/combiners 6 linked by lengths of optical fibre 5. The optical signals produced by transmitters 12 are interleaved in a predetermined time-division multiple access format and are modulated using return-to-zero modulation. This allows receiver 11 to operate at high bit rates despite wide variations in the power levels of the signals reaching the receiver from the different transmitters 12, which variations arise due to the different attenuations experienced by those signals as they propagate along optical fibre paths of different lengths containing different numbers of splitters/combiners 6. As a result, power levelling of the transmitter 12 is not required. <IMAGE>
Patent GB-2271611-A (GB)
Title: Hinge assembly
Inventor: KUDRNA PAUL J
IPC: H04W88/02
Filed: 1993-02-08
Abstract: A hinge assembly for hingedly connecting a cover (106) and a housing theretogether, such as a keypad cover and a housing of a portable radiotelephone (112). A generally tubular hinge arm (124) is formed at an end portion of the cover (106), and two hinge pins (136, 148), each having identical cam surfaces formed upon edge surfaces thereof, are inserted into the hinge arm (124) and positioned such that the cam surfaces of the respective hinge pins (136, 148) extend beyond opposing sides of the hinge arm (124) such that the hinge pins (136, 148) are caused to rotate in unison with rotation of the cover (106). A spring member (142) is tandemly-positioned between the two hinge pins (136, 148) to exert spring forces thereupon. Two cam followers (154) are affixed to the housing in a manner such that the cam surfaces of the hinge pins (136, 148) abut against the cam followers (154). The cover (106) may be rotated between an opened and a closed position and forces exerted upon the cam surfaces of the hinge pins (136, 148) by their abutting engagement with the cam followers (154) urge the cover (106) into or out of the open and closed positions during rotation of the cover (106) and urge the cover (106) to remain in the open or the closed position in the absence of rotational moments exerted thereupon by the spring forces exerted upon the hinge pins (136, 148) by the spring member (142). <IMAGE>
Patent GB-2272762-A (GB)
Title: Pattern detecting apparatus
Inventor: NAKAJIMA TOHRU
IPC: G07D7/182
Filed: 1993-11-12
Abstract: A pattern detecting apparatus has irradiating means 1, 3 and an optical fibre bundle 2 for emitting light and irradiating a surface of an object (7) eg. a banknote or coin whose pattern is to be detected, and a light detecting means (4) eg. a CCD for detecting light reflected from the surface of or transmitted through the object A pattern on the surface of the object is detected based on information from the light detecting means. The pattern detecting 3 apparatus further comprises a light transmitting means (5) eg. an optical fibre plate for transmitting light advancing in a predetermined direction. The light transmitting means (5) is positioned between the object (7) and the light detecting means (4) such that the predetermined direction coincides with the direction in which the reflected or transmitted light from the object advances. Light of two or more wavelengths may be used with a shared detector or separate detectors. <IMAGE>
Patent GB-935732-A (GB)
Abstract: 935,732. Variable resistors. BECKMAN INSTRUMENTS Inc. Feb. 19, 1962 [Feb. 23, 1961], No. 6249/62. Class 37. [Also in Group XXII] A method of making a variable resistor comprising a housing having seated therein a resistance element consisting of a wire wound upon a mandrel having closely justaposed ends, comprises placing the housing over a plurality of adjustable jaws which engage the resistance element seating, engaging the resistance element with a plurality of support means that are mechanically linked to the jaws and cutting the ends of the resistance while it is engaged by the support means. An apparatus for carrying out the method comprises a gauging plate divided by a vertical gap 54 into segments 52 and 53, and pivoted on a pin 39 for rotation through 180 degrees. The segments are pressed apart by a spring 72 and drawn together by a screw 71. The housing engaging jaws 57, 58 are formed on one side of the segments, and the resistance element support means are formed by cavities 55, 56 on the opposite side of the segments. A housing 10 is placed on the jaws 57 and 58 and the screw 71 is operated to allow the jaws to expand into engagement with the resistance element seating 21. A resistance element 13 is placed in the cavity 55, 56 and a motor-driven saw 78 is moved through the gap 54 to cut both ends 16, 17 of the element simultaneously. The circumference of the cavity 55, 56 is made greater than the circumference of the jaws 57, 58 by an amount equal to the thickness of the cutter 78 so that the ends of the resistance element are adjacent when it is assembled to the housing. The gauging plate assembly is mounted on a lever-operated carriage 20 to enable the work to be fed to the saw.
Patent GB-2274792-A (GB)
Title: Water heating vessels
Inventor: CURRIE NEIL ANTHONY
IPC: A47J31/14
Filed: 1994-02-07
Abstract: An electric kettle or coffee pot has a filter removably mounted at the junction of the spout 13 with the kettle body 11 and comprising a relatively coarse stiff filter screen 32 supporting a fine flexible web 31 of filter material. Web 31 may be bonded to screen 32 at least along its periphery on the downstream side. Alternatively the web is separate from the screen, but connected thereto by upper and lower mouldings, and located on its upstream side. Tongue 21, 22 depending from the top of the vessel holds the filter in place, urged against the vessel wall to filter water as it is poured. Screen 32 may be expanded stainless steel mesh, and web 31 may be microporous woven polyester. <IMAGE>
Patent GB-2286678-A (GB)
Title: Defect detection probe having displaceable sensor array
Inventor: LUGG MARTIN CHRISTOPHER
IPC: G01N27/82
Filed: 1994-02-18
Abstract: A probe for an alternating current potential drop (ACPD) testing system or an alternating current field measurement (ACFM) testing system comprises means 29, 30 for inducing a uniform a.c. field in a conductor and a plurality of sensor means 20 responsive to the field for producing signals indicative of defects in the conductor, the sensors being moveable relative to one another in a direction substantially normal to a surface of the conductor in order to allow the probe to conform to the geometry of the surface. <IMAGE>
Patent GB-2275474-A (GB)
Title: Styrene copolymers
Inventor: KIHARA HAYATO
IPC: C08F212/08
Filed: 1994-02-18
Abstract: A styrene copolymer has a weight average molecular weight of about 200,000 to 2,000,000, and a Z-branch count of 1 to 20, and contains not more than 5% by weight of matter insoluble in a methyl ethyl ketone/methanol mixture and not more than 5% by weight of matter soluble in methanol. Processes for preparing the styrene copolymer, a polystyrene resin composition containing the styrene copolymer and injection-molded articles prepared by injection-molding the polystyrene resin composition are also disclosed.